```json { "table_name": "titanic", "table_type_tags": [ {"tag": "dimension", "confidence": 0.95} ], "primary_type": "dimension", "insufficient_evidence": false, "entity": { "columns": ["PassengerId"], "unique_per_row": true }, "time_axis": null, "reasoning": "PassengerId has Uniqueness 1.000 and Monotonicity 1.000, uniquely identifying each passenger. No time axis exists — the table records fixed attributes of passengers (Name, Age, Sex, Fare, Cabin, Pclass, Embarked) and the outcome Survived. These are descriptive properties of each person, not timestamped events or state changes. Each row is unique information about one passenger → dimension." } ```